Vapor-burner



@No Model.)

'0. H. SHULTZ..

VAPOR BURNER.

Patent-ed Apr. 2, 1889.

WI TNESSE fV IJVVEJVTOR N. Firms. mumgumr. wnnmgm n. a

j coupling, as shown.

UNITED 'STATES PATENT OFFICE.

CHARLES H. SHULTZ, OF ST. JOSEPH, MISSOURI.

VAPOR-BURN ER.

SPECIFICATION forming part of Letters Patent N o. 400,498, dated April2, 1889. Application tiled May 1**7, 1887. Renewed February 23, 1889.Serial No. 300,995. (No model.)

o all whom it may concern.-

4Be it known that I, CHARLES H. SHULTZ, a citizen of the United States,residing at St Joseph, in the county of Buchanan and State of Missouri,have inventeda new and useful Improvement in Vapor-Burners for Gas-Stoves, of which the following is a specification.

My invention relates to an improvement in vapor-burners; and it consistsin the peculiar construction and arrangementof the devices, as will bemore fully set forth hereinafter", and particularly pointed out in theclaims'.v

In the drawings, Figure l is a vertical sectional view of a vapor-burnerembodying my improvements. Fig. 2 is a top plan view. of the same. Fig.3 is another form of the packing device forthe needle-valve..

A represents a hollow annular casting,

which constitutes the generating-chamber.

This chamber is preferably made annular in form and surrounds a centralopen space, B, which is open from top to bottom throughout the `heightof the chamber. From one side of the chamber A projects an offset, C,which per end of the usual stand-pipe, D, by a screw- From the oppositeside of the generating-chamber extends avaporpipe, F., to the lower endof which is attached a horizontal sleeve, F,fwhich has its closedapertured extremity projected toward the stand-pipe. ln this sleeve islocated the needle-valve G. The outer end of the horizontal sleeve F isprovided with screw-threads, as shown in Fig. l, and the closed innerend of the said sleeve has a conical central aperture, R.

S represents a packing-gland, which is cylindrical in shape, and isprovided with interior screw-threads adapted to fit the thread on theouter end of the sleeve F. Y

Gr represents the needle-valve, which fits in the sleeve F, and isprovided at its inner end with the usual conical needle-point extendingthrough the aperture R. The outer portion of the needle-valve isprovided with screwthreads U, which engage a threaded opening in thebottom of the gland S.

V represents packing material, which is arranged in the packing-gland onthe outer end suitable manner.

- from'the outer end of the sleeve F.

W represents a handle, which is secured to the lower depending end ofthe needlevalve by means of a setscrew, X.

H represents a combined mixing-chamber and burner-head, which has itsupper end part way inserted in the space and arranged concentrically inthe said space. The lower end of the mixing-chamber and burner-head isprovided with an integral tube, I, which is open at its outer end, andis projected toward the inner end -of the sleeve F. This mixing-chamberand burner-head may be supported. by an arm, K, projecting from thestand-pipe, as shown in theaccompanying drawings; or it may be supportedin any other The upper end of the mixing-chamber and burner-head isprovided with a number of horizontal radial openings, L, some of whichare slightly above the lower side of the generating-chamber and theothers are below the same.

M represents a drip or oil cup, which forms an annular flange-extensionof the cap of the mixing-chamber and burner-head. This cap is secured inposition by means of the vertical clamping-bolt N, as shown in Fig. l.

The operation of my invention is as follows: In starting the burner inoperation a small quantity of oil is placed in the cup N and is ignited,thereby causing the generating-chamber, which is directly over theoil-cup, to become thoroughly heated. When the oil is permitted to ilowfrom the reservoir (not shown) through the stand-pipe D into thegeneratingchamber, it becomes vaporized therein, and the vapor passesthrough the pipe E and the sleeve F and is directed by the aperture inthe said sleeve into the burner-head through theopen tubel thereof. Asthe said vapor entersthe' burner-head it sucks the air into theburner-head, which air mingles with the vapor and renders the lattercombustible. As the oxygenized vapor passes outward from the burner insmall jets through the openings L, it burns in a IOO flame, whichstrikes against. the lower and inner sides of the annulargenerating-chainber, and thus keeps the said generat or so hot that itis caused to generate vapor as fast as it is consumed by the burner.Exterior air is drawn upward by the ame and heat through the space B andaround the upper end of the burner ll in suiicient qualitities to insureperfect combustion of the vapor.

Particular stress is laid on the construction of the burner-head andcommin glin g-ch amber with the series of perforations in the sidesabove and below the lower side of the generator, whereby the jets ofname are projected laterally against the bottom and lower sides of thegenerator-chamber, causing the latter to be thoroughly heated to effectthe vaporization of the oil. By havingl the jet-openings in the sidesinstead of at the top the flame is caused to strike the bottom of thegenerator-chamber and cannot escape without touching the chamber. Again,the burner is arranged out of contact with the lower side of thegenerator, to leave a space through which air can escape through thespace B of the generator to feed combustion.

The construct-ion of packing shown in Figs. l and 3 is claimed in myapplication, Serial No.238,3i8, filed May-16, 1887. In Fig. 3l show animproved form of packing. The`gland S screws upon the tube F in themanner shown in Fig. l; but in the present instance l employ a cap, XW,held rigid on the valve-stem by a set-screw, X2, and this cap XW screwsover the threaded outer end of the gland S. By this arrangement the capXW is caused to screw or unscrew over the threaded outer end of thegland by the movement of the valve G. The object of this construction isto dispense with the necessity of threading the valve, as in theconstruction shown in Fig. l, and at the same time secure the propermovement for the valve. By the turning of the valve the box N l2 worksover the outer end of the gland to give the proper movement to thevalve. By this means the turning of the valve G effects the packingthereof, and leaking of the gas is entirely overcome. Should any gasescape from the valve, it will be arrested by the packing-gland. Nostuffingboxes are required to be used in this packing device, and thisis a point gained, as every one familiar with this art will admit.

Particular stress is laid on the arrangement of the burner within theair-space B of the generating-chamber, whereby the said airspace is notclosed by the burner,but a space is left around the burner and betweenit and the generating-chamber to allow a free upward draft of air forthe purpose of assisting combustion.

It has been found in practice that unless the fiames jets are suppliedwith a suiiicient quantity of air the jets will be of a yellowish colorand cause smoking, with an offensive odor. By my construction theflame-jets are supplied with air in such quantities as to insure perfectcombustion,causing the flamejets to be of a purplish color, devoid ofsmoke or odor.

l ain not aware that any vapor-burner havingl a central opening orair-space, B, has ever been constructed with the burner located in thesame but not closing the said air-space, so that a free upward currentof air around the burner is insured at all times.

Having thus described my invention, I claiml. In a vapor-burner, thegenerating-chamber A, surrounding a central space, B, which is entirelyopen both at the top and bottom, combined with the burner-head arrangedbelow the generating-chamber and having its upper end inserted part wayinto the open space B, the top of thc burner being closed andimperforate, and two or more series of jet-openings, L, in the sides ofthe burnerhead, one series being above the other, so that the openings Lare both above and below the bottom of the generating-chamber, as setforth.

2. In a vapor-burner, the generating-chamber A, surrounding a centralspace, B, which is open at the top and bottom, and the combinedmixing-chamber and burner H, arranged below the generating-chamber, theburnerhead being inserted into the space B, and having a removable capprovided with a hanged extension, which forms an oil-cup, M, the top ofthe cap being imperforate, and the perforations L in the sides of saidcap, as set forth.

3. In a vapor-burner, the generating-chamber A, surrounding a centralspace, B, which is open at the top and bottom,and the vaporpipe E,extending from thc chamber, in coinbination with the combinedmixing-chamber and burner H, made separate from the generating-chamberand having its upper end inserted part way into the space B and itslower end formed with an integral tube, I, which is turned to one sidetoward the pipe 1Q, and the needle-valve at the lower end of pipe E,adjacent to the end of tube I, and the jet-openings L in the sides ofthe burner, said openings being both above and below the bottom of thegenerating-chamber, the top of the burner being imperforate, as setforth.

In testimony that I claim the foregoing as my own I have hereto aiiixedmy signature in presence of two witnesses.

CHARLES Il. SHULTZ.

Titnessesz MYRTLE STALNAKER, E. G. SIGGERS.

IOO

IIO

